.query-form {
    margin-top: 20px;
    padding-top: 25px;
    padding-left: 20px;
    background-color: #f2f2f2;
  }
  .el-table thead{
    color: #909399;
    font-weight: 500;
  }
  .el-table th.el-table__cell{
    background-color: #f6efee;
    color: #333;
  }